Free Printable Genetics

Worksheets

Genetics

Total questions: 29

Worksheet time: 25mins

Name

Class

Date

Which of the following is a phenotype?

Blue eyes

having two of the same genes for the trait (sometimes called purebred).

homozygous

hetrozygous

protein

chromosome

having two different genes for a trait (sometimes called hybrid).

protein

homozygous

heterozygous

genotype

G = green, g = yellow
The genotype for a yellow plant is...

all of the choices result in yellow

Which of the following genotypes would be considered heterozygous?

What is the percentage of offspring that have green pods?

100%

75%

50%

25%

Which of the following genotypes is a purebred?

Which of the following terms refers to the different possibilities of a gene?

chromosome

DNA

Punnett Squares

allele

If something is heterozygous, it is also...

purebred

hybrid

dominant

recessive

10.

Another word for homozygous is...

purebred

hybrid

heterozygous

dominant

11.

Aa, DD, bB, yy are all examples of

genotypes

phenotypes

12.

Dominant or recessive?
tt

Dominant

Recessive

13.

allele that masks or dominates the other allele in the pair

recessive

dominant

14.

If two heterozygous tall plants are crossed, and tall is dominant. What would be your expected phenotypes?

100% tall

75% tall, 25%short

50% tall, 50%short

25% tall, 75% short

15.

If a purebred, normal feathered bird (FF) is crossed with a frizzy-feathered bird (ff) how many different phenotypes would you have?

16.

An allele whose trait only shows up when no dominant allele is present.

hidden allele

dominant allele

recessive allele

present allele

17.

How many generations are in this pedigree?

18.

Sickle cell anemia is the recessive disease being studied here. Who has the disease?

I-1 and II-2

II-2 and II-4

III-1, III-2, and III-3

19.

This is a recessive disease pedigree. What is the genotype of the female in generation II?

20.

This is the recessive disease pedigree. What is the genotype of the oldest male in generation II? (oldest is on the left)

21.

This is a recessive disease pedigree. What is the genotype of the male in generation I?

22.

Huntington's Disease is a dominant trait.
What is the correct genotype for individual I-2?

23.

What phase is shown in the picture?

anaphase 1

anaphase 2

metaphase 1

telophase 1

24.

What phase is shown here?

Prophase II

Metaphase I

Metaphase II

Anaphase I

25.

Meiosis results in the production of

2 diploid cells

2 haploid cells

4 haploid cells

4 diploid cells

26.

The end of meiosis results in ____ to each other.

2 cells that are identical

4 cells that are identical

2 cells that are not identical

4 cells that are not identical

27.

Which letter(s) in the diagram correspond to cells that are haploid?

A only

B only

C only

A and B

C and B

28.

What is the gender of this person?

Male

Female

29.

Describe this karyotype.

Male with no obvious disorder

Female with no obvious disorder

Female with disorder

Male with disorder

Reset

Genetics

Total questions: 29

Worksheet time: 25mins

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